Lightweight materials optimization for EMI protection applications

Nowadays EMI shielding solutions, like most of electronic industry trends, are getting oriented to economical and friendly-environmental technologies. The classical EMI protection solutions consist in standard electromagnetic shielded enclosures designed as the product chassis. The particular situations were classic electronic equipment is placed in a hard EMI environment, are treated by using a special design equipment or a large Faraday enclosure to place the equipment. Both solutions mentioned above involve high costs and sometimes the start date of specific activity is postponed in that hard environment. Our work was to design a special enclosure, using lightweight materials, adapted to equipment in order to maintain product performances and functionality. The technologies analyzed during our studies were represented by conductive coatings and fabrics applied to different types of dielectric substratum by deposition and multi-layer techniques.